Base | Representation |
---|---|
bin | 11011111110000100… |
… | …001001010000011011 |
3 | 2212112000002001221101 |
4 | 123332010021100123 |
5 | 443001232200011 |
6 | 21444024252231 |
7 | 2112141236035 |
oct | 337604112033 |
9 | 85460061841 |
10 | 30032303131 |
11 | 118114a7936 |
12 | 59a1911077 |
13 | 2aa7c9548c |
14 | 164c856c55 |
15 | bab8aa2c1 |
hex | 6fe10941b |
30032303131 has 4 divisors (see below), whose sum is σ = 30671288352. Its totient is φ = 29393317912.
The previous prime is 30032303117. The next prime is 30032303167. The reversal of 30032303131 is 13130323003.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 30032303131 - 221 = 30030205979 is a prime.
It is a super-2 number, since 2×300323031312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30032303099 and 30032303108.
It is not an unprimeable number, because it can be changed into a prime (30032303831) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319492540 + ... + 319492633.
It is an arithmetic number, because the mean of its divisors is an integer number (7667822088).
Almost surely, 230032303131 is an apocalyptic number.
30032303131 is a deficient number, since it is larger than the sum of its proper divisors (638985221).
30032303131 is an equidigital number, since it uses as much as digits as its factorization.
30032303131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 638985220.
The product of its (nonzero) digits is 486, while the sum is 19.
Adding to 30032303131 its reverse (13130323003), we get a palindrome (43162626134).
The spelling of 30032303131 in words is "thirty billion, thirty-two million, three hundred three thousand, one hundred thirty-one".
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